The National Library of Scotland (NLS) maintains one of the largest map collections in the world, offering public access to both their physical archives, and a digital view of historic and modern landscapes.
"For the last ten years, the NLS has been happily using OS OpenData as a modern map layer in our maps website viewers."Chris Fleet, Map Curator, The National Library of Scotland
To bring their maps to the modern viewer (i.e. online), the NLS team needed to fetch up-to-date OS map tiles from a stable source.
The process required substantial technical knowledge, time, computing and storage resources.
The team was required to periodically download large spatial datasets and re-process them, so they could host raster map tiles on their own web servers – taking several days with hosting being an additional cost.
The raster tile service included in the OS Maps API provides the most up-to-date map tiles.
NLS Map Curator Chris Fleet updated a few lines of the code deployed on the NLS map view website. This small update means that Map Viewer users fetch their mapping data directly from OS – not from the map tile server configured and maintained by Chris and his team.
"We no longer need to periodically fetch, process and host OS OpenData. Instead, NLS users constantly are viewing the most up-to-date mapping data Ordnance Survey maintains."Chris Fleet, Map Curator, The National Library of Scotland
"In ten minutes, you can get everything up and working"Chris Fleet, Map Curator, The National Library of Scotland
The OS Maps API provides three primary benefits to the NLS web mapping team:
- The NLS site now displays the most up-to-date mapping Ordnance Survey has published – changes in the real world are reflected on their website in a matter of weeks, not years.
- The OS Maps API serves map tiles using new, “significantly improved” OS cartographic styling and enriched map content, including visual consistency across zoom levels and topographic relief.
But perhaps the most important advantage is that the mapping itself is significantly improved in terms of styling and content.
As users zoomed in and out with the previous separate OS OpenData products the contrast in styling when jumping between the layers was quite obvious, whereas now different zoom levels look and feel like a single integrated map.
More important still, especially at larger scales, is the much richer topographic content which, in many of the hillier parts of the country, means that the sense of topography and relief is easier to convey.
There are also a number of styling improvements to land use and text for features, so that things like parkland and woodland are easier to tell apart, more minor street names can be shown in urban areas, and different coloured lettering distinguishes things like schools, hospitals and churches from street names.
OS Maps API
Accurate, up-to-date maps that offer the most convenient way to add detailed OS data to your application.
OS Vector Tile API
Slick, quick vector maps for use as a customisable, contextual base, with a focus on web and mobile apps.
OS Features API
Direct access to the most detailed geographic data for your analysis. Take full advantage of rich geometries and attributes to generate new insight.